Record Display for the EPA National Library Catalog

RECORD NUMBER: 6 OF 15

OLS Field Name OLS Field Data
Main Title Hydrologic Simulation of Depressional Watersheds.
Author Campbel, Kenneth L. ; Johnso, Howard P. ;
CORP Author Iowa State Water Resources Research Inst., Ames.
Year Published 1972
Report Number ISWRRI-48; DI-14-31-0001-3588; ISWRRI-B-025IA; 09101,; B-025-IA(1)
Stock Number PB-221 268
Additional Subjects ( Watersheds ; Mathematical models) ; Subsurface drainage ; Soil water ; Surface water runoff ; Tile drains ; Evapotranspiration ; Head(Fluid mechanics) ; Flooding ; Water storage ; Depressions ; Glacial features ; Percolation ; Iowa ; Saturated soils ; Computerized simulation ; Computer programs ;
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-221 268 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 226p
Abstract
A mathematical model was developed to simulate watersheds in flat areas with many surface depressions and to indicate the response due to watershed changes. The model, which simulates the watershed discharge and soil moisture status continuously throughout the crop season is based on a single-storm hydrologic model and uses daily pan evaporation and time-depth precipitation records as input. It simulates the processes of interception, surface storage, infiltration, surface runoff, soil profile storage, percolation to the water table, subsurface tile drainage, soil moisture redistribution, evapotranspiration, depression routing, tile-main routing, and drainage ditch routing. The resulting outputs are daily evapotranspiration, soil moisture status in the crop root zone, and watershed discharge. (Modified author abstract)